メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.910009765786 35.0742146739369, 136.91007526533 35.0745726501038, 136.910104796913 35.0747538490265, 136.909903617921 35.0747608216618, 136.909486368065 35.0747841725777, 136.909371045254 35.0747839311496, 136.909371194926 35.0747354779244, 136.909235141762 35.074742447016, 136.909232377755 35.0746182090586, 136.909224573996 35.0742673971954, 136.909216131285 35.073888132053, 136.909945198681 35.0738321925699, 136.910009765786 35.0742146739369)) ^^http://www.opengis.net/ont/geosparql#wktLiteral